ST23 Contactless Secure MCU with 2 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor, RF Type A,B,B'

ST23ZC02 products are secure microcontrollers specially designed for secure smartcard applications.

They are based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes of linear addressing space. ST23ZC02 devices are manufactured using an advanced highly reliable ST CMOS EEPROM technology.

Key Features

  • Hardware features
    • Enhanced 8/16-bit ST23 CPU core with 16 Mbytes of linear addressable memory
    • 92 Kbytes of User ROM
    • 4 Kbytes of User RAM
    • 0.5 Kbytes dedicated RFUART RAM
    • 2 Kbytes of User EEPROM including 128 Bytes of User OTP area:
      • Highly reliable CMOS EEPROM submicron technology
      • 30-year data retention at 25°C
      • 500,000 Erase/Write cycles endurance at 25° C
      • 1 to 32 byte Erase or Program in 1.5 ms
    • Operating temperature: –25° to +85°C (see restricted test conditions)
    • Three 8-bit timers with watchdog and interrupt capability
    • High performance provided by:
      • CPU clock frequency up to 28 MHz
    • Power-saving Standby state
    • ESD protection greater than 5 kV (HBM)
  • Contactless features
    • Complies with ISO/IEC 14443 Type A, B and B’, and PayPass™ standards
    • 13.56 MHz carrier frequency
    • RF frame up to 512 bytes
    • RFUART (RF universal asynchronous receiver transmitter) up to 848 Kbps
  • Security features
    • Active shield
    • Monitoring of environmental parameters
    • Protection mechanisms against faults
    • True random number generator (TRNG) (AIS-31 Class P2 compliant)
    • 16-bit Cyclic Redundancy Check (CRC) calculation block (ISO/IEC 13239)
    • Unique serial number on each die
    • AES accelerator
    • Three-key Triple DES accelerator (EDES+)
  • Development environment
    • C compiler, simulator and emulator



Description Version Size
DB1317 DB1317: Secure microcontroller with enhanced security with 2 Kbytes EEPROM and contactless-only interface 2.1 101 KB


型号 Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ST23ZC02 Active - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors


型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST23ZC02 ActiveDICEIndustrialN/A

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.